Each nail polish duo includes one of Selena Gomez's new polish colors and a mini bottle of silver Gumdrops, a limited edition matte textured shade. And we're obsessed with the star's holiday hues: Pretty in Plum is the perfect deep purple and Scarlett is a shimmery red-violet. The gift sets launch this month and will cost you $7.99 each, but luckily, you can win both kits. Keep reading to find out how ...

To enter to win, tell us your favorite Selena song in the comments, or you can "Like" this post on Facebook. Good luck!

Three winners will be selected to win both sets. The contest ends Oct. 3, 2013 at 12 p.m. EST. Contest only open to U.S. residents.